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UNITED sTATEs PATENT oEErcE.

DOMENICO GIAMBASTIANI, OF WASHINGTON, DISTRICT OF COLUMBIA.

FIREMANS LADDER.

Specification of Letters Patent N o. 415,883, dated October 14, 1856.

To all whom t may concern.'

Be it known that I, DOMENICO GIAMBAs- TIANI, of Washington, in theDistrict of Columbia, have invented a Firemans Ladder, of which thefollowing is a specification.

This remans ladder consists of sections a, Z9, c, cl, e which canreadily be put togetherI so as to form a double ladder of greatsteadiness` and strength. The two lowest frames e, e are connected bybraces f, j which are hinged together and to the frames at t, u and s.By means of these hinged braces the lowest frames can be folded togetherwhen not in use. They can be unfolded easily and rapidly and whenunfolded form the foundation for the upper structure consisting of therest of the sectional frames. When unfolded the hooks g serve to steadythe braces. The second set of frames al, d is placed over the frames e,e so that the ends p, 0 of the ladder steps fit into the notches m, n.at the ends of the outer uprights of the ladder. The central uprightslv, fw are similarly connected to each other by tongues and grooves g,r.

In a similar way the frames c, o b, b and a, a (the latter hinged at thetop) are set one upon the other and connected with each other exactly asframe d, d with frame e, e as above described. Hooks Z serve to insurethe steadiness of the whole structure.

A small crane :n can be attached to the top of the ladder in such a waythat it can be swung in a horizontal plane in order to remove weightyarticles from the burning building and let them down. The crane caneasily be lifted out of the hooks on which it swings, when it is to beused no further.

By reason of the ease with which the substructure eA e can be unfoldedand set up in combination with the peculiar manner of attaching theupper sections, this firemens ladder can be built up with more rapidityand by a less number of persons than any other remens ladder in use.

at I claim as new and desire to secure byLetters Patent of the UnitedStates, is-

The combination of the folding foundation frame e, e with the detachablesingle ladder sections a a, b b, o c', Z d', as above described and forthe purpose herein stated.

DOMENICO GIAMBASTIANI.

Witnesses: f

FERDINAND ARTos, Louis BERToLozzI.

